We are manufacturer for kinds of Edible Fungus, including Tricholoma Matsutake. Tricholoma Matsutake Tricholoma Matsutake,Tricholoma Matsutake Mushroom,Natural Dried Tricholoma Matsutake,Frozen Wild Tricholoma Matsutake Chengdu Minghe Agriculture Co.,Ltd , http://www.cdmhny.com Proportional active safety valve Two-stage full-open safety valve When the required displacement is large, several two-stage safety valves are used, the total amount is equal to the large required displacement of zui; when the required displacement is small, the proportional-action safety valve is used. Conventional safety valve Back pressure balanced safety valve Back pressure balanced safety valve Pilot operated safety valve With supplementary load type safety valve Spring type safety valve
Conditions of Use
Safety valve type
Liquid medium
Gas medium and required large displacement
The required displacement is variable
The back pressure is atmospheric pressure, the back pressure is a fixed value, or the back pressure is small compared to the set pressure.
Additional back pressure (static back pressure) is variable and varies greatly with respect to setting pressure
Respond quickly
Requires a large displacement, or a large caliber and pressure, and high sealing requirements
High sealing requirements, set pressure and sealing pressure are very close
Moving or vibrating pressurized equipment